{"id":21076478,"url":"https://github.com/imelgrat/object-properties-enumerability","last_synced_at":"2025-10-05T12:59:44.557Z","repository":{"id":93311920,"uuid":"251751985","full_name":"imelgrat/object-properties-enumerability","owner":"imelgrat","description":"Object properties enumerability - defineProperty() and defineProperties() methods","archived":false,"fork":false,"pushed_at":"2020-04-07T01:22:56.000Z","size":3,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"master","last_synced_at":"2025-03-14T03:45:08.678Z","etag":null,"topics":["enumerable","enumeration","iteration","javascript","object-property","objects","property-descriptor"],"latest_commit_sha":null,"homepage":"","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/imelgrat.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-03-31T21:56:00.000Z","updated_at":"2020-04-07T01:30:13.000Z","dependencies_parsed_at":null,"dependency_job_id":"d99240b1-8714-4ce0-b0f4-b6efd4ab6a2b","html_url":"https://github.com/imelgrat/object-properties-enumerability","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/imelgrat/object-properties-enumerability","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imelgrat%2Fobject-properties-enumerability","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imelgrat%2Fobject-properties-enumerability/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imelgrat%2Fobject-properties-enumerability/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imelgrat%2Fobject-properties-enumerability/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/imelgrat","download_url":"https://codeload.github.com/imelgrat/object-properties-enumerability/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/imelgrat%2Fobject-properties-enumerability/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":278457468,"owners_count":25989956,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-05T02:00:06.059Z","response_time":54,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["enumerable","enumeration","iteration","javascript","object-property","objects","property-descriptor"],"created_at":"2024-11-19T19:28:35.194Z","updated_at":"2025-10-05T12:59:44.539Z","avatar_url":"https://github.com/imelgrat.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Object properties enumerability\r\n\r\nECMAScript 5 introduced a new mechanism for managing and configuring what can be done to an object's properties. New **.defineProperty()** and **.defineProperties()** methods were implemented. These methods let you control the behavior of each property.\r\n\r\nAs you can most certainly guess, they define new object properties, just like the dot-notation property definition with one big difference: these methods let you control the behavior of each property.\r\n\r\nBy \"behavior\" I mean the ability to change the value of the property after it's been created (_writable_), the ability to control the available features of the property once defined (_configurable_). Last, but most relevant to this article, ES5 added the ability to determine whether the property will be _enumerable_ (shown in the `for..in` loop).\r\n\r\nRead more at: https://imelgrat.me/javascript/object-properties-iteration-in-javascript/\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimelgrat%2Fobject-properties-enumerability","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fimelgrat%2Fobject-properties-enumerability","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimelgrat%2Fobject-properties-enumerability/lists"}